/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 刘国水
 * Date: 2025-04-15
 * Time: 12:32
 */
public class test {
    public class Singleton {
        private static Singleton instance = new Singleton();
        private Singleton () {
        }
        public static Singleton getInstance() {
            return instance;
        }
    }

}
